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All results from a given calculation for C5H8O2 (Acetylacetone)

using model chemistry: PBEPBE/6-31G(2df,p)

19 10 17 12 22

States and conformations

State Conformation minimum conformation conformer description state description
1 1 yes C2 1A
Energy calculated at PBEPBE/6-31G(2df,p)
 hartrees
Energy at 0K-345.400614
Energy at 298.15K-345.408903
HF Energy-345.400614
Nuclear repulsion energy295.582875
The energy at 298.15K was derived from the energy at 0K and an integrated heat capacity that used the calculated vibrational frequencies.
Vibrational Frequencies calculated at PBEPBE/6-31G(2df,p)
Mode Number Symmetry Frequency
(cm-1)
Scaled Frequency
(cm-1)
IR Intensities
(km mol-1)
Raman Act
4/u)
Dep P Dep U
1 A 3104 3072 6.29      
2 A 3043 3012 2.95      
3 A 3015 2984 2.09      
4 A 2974 2943 0.09      
5 A 1765 1747 17.44      
6 A 1422 1408 5.08      
7 A 1418 1403 13.42      
8 A 1404 1389 6.98      
9 A 1324 1310 7.03      
10 A 1224 1211 24.13      
11 A 1095 1083 1.23      
12 A 1032 1021 0.74      
13 A 899 890 1.01      
14 A 768 760 0.31      
15 A 602 596 1.62      
16 A 469 465 4.43      
17 A 312 309 0.82      
18 A 184 182 0.20      
19 A 137 135 0.52      
20 A 71 70 6.13      
21 B 3104 3072 6.00      
22 B 3092 3060 5.36      
23 B 3043 3012 0.01      
24 B 2973 2943 3.18      
25 B 1737 1719 285.23      
26 B 1418 1403 1.17      
27 B 1414 1399 21.87      
28 B 1323 1309 93.86      
29 B 1176 1164 105.94      
30 B 1140 1128 201.15      
31 B 1019 1009 10.02      
32 B 954 944 1.59      
33 B 856 848 32.50      
34 B 784 776 16.79      
35 B 524 519 25.14      
36 B 483 478 0.57      
37 B 398 394 1.22      
38 B 184 182 0.69      
39 B 43 43 9.47      

Unscaled Zero Point Vibrational Energy (zpe) 25962.0 cm-1
Scaled (by 0.9897) Zero Point Vibrational Energy (zpe) 25694.5 cm-1
See section III.C.1 List or set vibrational scaling factors to change the scale factors used here.
See section III.C.2 Calculate a vibrational scaling factor for a given set of molecules to determine the least squares best scaling factor.
Rotational Constants (cm-1) from geometry optimized at PBEPBE/6-31G(2df,p)
ABC
0.13480 0.06608 0.05181

See section I.F.4 to change rotational constant units
Geometric Data calculated at PBEPBE/6-31G(2df,p)

Point Group is C2

Cartesians (Å)
Atom x (Å) y (Å) z (Å)
C1 0.000 0.000 1.029
C2 0.000 1.232 0.105
C3 0.000 -1.232 0.105
C4 -1.372 1.727 -0.300
C5 1.372 -1.727 -0.300
O6 1.043 1.713 -0.303
O7 -1.043 -1.713 -0.303
H8 -0.908 -0.031 1.648
H9 0.908 0.031 1.648
H10 -1.293 2.480 -1.095
H11 -1.988 0.871 -0.626
H12 -1.883 2.165 0.575
H13 1.293 -2.480 -1.095
H14 1.988 -0.871 -0.626
H15 1.883 -2.165 0.575

Atom - Atom Distances (Å)
  C1 C2 C3 C4 C5 O6 O7 H8 H9 H10 H11 H12 H13 H14 H15
C11.54031.54032.57512.57512.40752.40751.09931.09933.51172.73012.90483.51172.73012.9048
C21.54032.46461.51373.28691.21873.15072.19102.15632.16032.14902.15334.10982.98533.9124
C31.54032.46463.28691.51373.15071.21872.15632.19104.10982.98533.91242.16032.14902.1533
C42.57511.51373.28694.41132.41523.45522.66443.44551.09781.10391.10405.04284.26005.1485
C52.57513.28691.51374.41133.45522.41523.44552.66445.04284.26005.14851.09781.10391.1040
O62.40751.21873.15072.41523.45524.01043.26392.57962.58293.16243.08854.27382.77004.0633
O72.40753.15071.21873.45522.41524.01042.57963.26394.27382.77004.06332.58293.16243.0885
H81.09932.19102.15632.66443.44553.26392.57961.81713.73822.67472.63084.28553.77743.6737
H91.09932.15632.19103.44552.66442.57963.26391.81714.28553.77743.67373.73822.67472.6308
H103.51172.16034.10981.09785.04282.58294.27383.73824.28551.81411.79935.59304.71295.8691
H112.73012.14902.98531.10394.26003.16242.77002.67473.77741.81411.76894.71294.34125.0643
H122.90482.15333.91241.10405.14853.08854.06332.63083.67371.79931.76895.86915.06435.7383
H133.51174.10982.16035.04281.09784.27382.58294.28553.73825.59304.71295.86911.81411.7993
H142.73012.98532.14904.26001.10392.77003.16243.77742.67474.71294.34125.06431.81411.7689
H152.90483.91242.15335.14851.10404.06333.08853.67372.63085.86915.06435.73831.79931.7689

picture of Acetylacetone state 1 conformation 1
More geometry information
Calculated Bond Angles
atom1 atom2 atom3 angle atom1 atom2 atom3 angle
C1 C2 C4 114.956 C1 C2 O6 121.077
C1 C3 C5 114.956 C1 C3 O7 121.077
C2 C1 C3 106.262 C2 C1 H8 111.103
C2 C1 H9 108.392 C2 C4 H10 110.623
C2 C4 H11 109.371 C2 C4 H12 109.703
C3 C1 H8 108.392 C3 C1 H9 111.103
C3 C5 H13 110.623 C3 C5 H14 109.371
C3 C5 H15 109.703 C4 C2 O6 123.881
C5 C3 O7 123.881 H8 C1 H9 111.476
H10 C4 H11 110.962 H10 C4 H12 109.611
H11 C4 H12 106.480 H13 C5 H14 110.962
H13 C5 H15 109.611 H14 C5 H15 106.480
Electronic energy levels
Charges, Dipole, Quadrupole and Polarizability
Charges from optimized geometry at PBEPBE/6-31G(2df,p) Charges (e)
Number Element Mulliken CHELPG AIM ESP
1 C -0.402      
2 C 0.357      
3 C 0.357      
4 C -0.510      
5 C -0.510      
6 O -0.269      
7 O -0.269      
8 H 0.139      
9 H 0.139      
10 H 0.152      
11 H 0.174      
12 H 0.157      
13 H 0.152      
14 H 0.174      
15 H 0.157      


Electric dipole moments
Electric dipole components in Debye
(What's a Debye? See section VII.A.3)
  x y z Total
  0.000 0.000 1.418 1.418
CHELPG        
AIM        
ESP        


Electric Quadrupole moment
Quadrupole components in D Å
Primitive
 xyz
x -42.678 -8.445 0.000
y -8.445 -44.593 0.000
z 0.000 0.000 -39.779
Traceless
 xyz
x -0.492 -8.445 0.000
y -8.445 -3.364 0.000
z 0.000 0.000 3.856
Polar
3z2-r27.713
x2-y21.915
xy-8.445
xz0.000
yz0.000


Polarizabilities
Components of the polarizability tensor.
Units are Å3 (Angstrom cubed)
Change units.
  x y z
x 9.706 -0.579 0.000
y -0.579 10.438 0.000
z 0.000 0.000 7.411


<r2> (average value of r2) Å2
<r2> 228.879
(<r2>)1/2 15.129